Melting kettle



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MELTING KETTLE Filed Jan. 6, 1936 ze I// 12 ,es /5 37 l l 38 /3 av V4139 e? y as j 63 v /7 /4 l 55 2.1 t 0 @w59 42 f, :f o o o I7 11s ,9 asae 22- l zo 6 INVENTOR.

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\ ATTORYL Patented Apr. 13, 1937 UNITED STATES PATENT DFFICE MELTINGKETTLE James N. Williams, Pasadena, Calif. Application January 6, 1936,Serial No. 57,709

4 Claims.

This invention relates to melting kettles.

. 'I'he general object of the invention is to provide an improvedmelting kettle which is particularly adapted for melting bituminousmaterials for use on roofs, for paving, etc.

A more specific object of the invention is to provide a melting kettlewhich can be economically manufactured and wherein the parts are notlapt to warp or to become distorted due to heat, and wherein repairs canbe economically made.

An additional object of the invention is to provide a melting kettleincluding an outer container and an inner receptacle so arranged thatthere is a crescent shaped space between the two so that 15 good heatYcontrol is secured.

Another object of the invention isV to provide a melting kettleincluding a ange closure portion which extends above the body of thekettle so that the kettle may be lled above the heating line to preventflashing. l

. y Another object of the invention is to provide an improved flueconstruction and vent for a melting kettle.

Other objects and the advantages of the inven- .25 tion will be apparentfrom `the following descrip- 1tion taken in connection with theaccompanying drawing, wherein:

Fig. 1 is a side elevation showing my improved melting kettle;

.3,0 w Fig. 2 is a fragmentary, central, vertical section through akettle embodying the features of my invention;

Fig. '3 is a fragmentary section taken on line 3 3 of Fig. 1;

Fig. 4 is a top plan view showing my melting kettle; and

Fig. 5 is an enlarged fragmentary section through the upper portion ofthe container and kettle.

4o Referring to the drawing by reference characters I have shown myinvention as embodied in a melting kettle indicated generally at IIJ.

As shown the kettle comprises an outer container I I which is circularin cross-section and L5 which has a frame I2 secured to each sidethereof. The frame extends forwardly from the kettle and includes frontportions I3 on which a coupling member I4 is mounted so that the kettlemay be attached to a truck or other vehicle.

0 Transversely of the frame I arrange a fuel tank I5 which is supportedon angle members I6 and the fuel tank asy shown includes a pressure gageI1 and a pump I 3. The fuel tank communicates through a pipe I9, whichis controlled by a valve 5 28, with a pipe 2l the latter of which isadapted to discharge fuel into a burner 22 which may be of any desiredconstruction suitable for the purpose intended.

The tank I 5 further includes a filler cap 23 and a relief valve 24. 5

To shield the tank I5 and its accessories from the heat of the burner 22I provide a shield 25 extending between and above the members I2.

A cross member 26 yextends between the members i2 and supports anadjustable leg 21 which .10 is adapted to hold the kettle in ahorizontal position when it is disconnected from a vehicle.

In order to transport the kettle I provide a pair of wheels 28, whichare secured to an axle 29 which supports springs 30. 'I'he springs 30are 115 secured to the members I2 by suitable shackles al and 32. t p

The outer container II is secured to the frame members I2 by bolts 33.The upper edges of the container II are formed into angular shelves 3420 which are reinforced by angle members 35. The shelves 34 extend theentire length of the container II and are adapted to support an innertank member 36 which is cylindrical in shape and which includes adjacentthe upper edges 25 thereof angular hanger portions 31 which arecoextensive with and slidably engage the shelf portions 34.

Extending between the hanger portions 31 at both ends thereof I provideaprons 38. 'I'he inner 30 ends of the aprons 38 are bent upwardly toform flanges which surround a filling aperture 38. The anges form acover engaging portion 39 and then bend downward to form a U-shapedsealing portion 48. Y ,35

Extending along the hangers 31 between the portions 39 I provideU-shaped sealing portions 4I similar to the portions' 39 and 48. (SeeFig. 5.)

A cover member 42 is secured to one of the hangers '31 by suitablehinges 43. The periphery 40 vof the cover 42 is provided with adownwardly extending flange 43which is positioned outside the portions38 and 4I when the lid is closed. A second flange 441s secured to thecover 42 ashort distance inside the flange 43. 'I'he flange 44 is 45adapted, when the cover is closed, to extend into the U-shaped members40 and 4I. (See Fig. 5.)

The cover is provided with suitable vents 45. vA closure latch arm 46 ispivotally mounted on the cover 42 and is adapted to engage a latchmember 50 41 secured to the .hanger 31. A rigid handle 48 Y is securedto the cover 42 on the same side thereof as the hinge 43 so that aperson opening the cover will stand on the side where he will beshielded by the cover as the latter is raised. The

' member 36 are secured as handle 48 includes a stop plate 49 which,when the cover is in a raised position, engages the hanger 31 to holdthe cover in a raised position.

The container Ii is provided with an end plate 56 adjacent one end andat the other end is provided with a circular flange I. A closure member52 is removably secured to the flange 5i as by bolts 53 and is securedto the rear apron 38 by bolts as at 54.

A thermometer 55Y is mounted in one lof the aprons 38 and extendsdownward into the interior of the tank member 36.

Y One of the aprons 38 and one end of the tank plate 56 which isparallel to closure 52. The other apron 38 and the other end of themember 36 are Secured as by welding tovan end plate 51 which is parallelto andY spaced from the plate 50. A iiue tube 58 extends betweentheplates 56 and 51.

Secured to the closure V52 is-a semihcircular sheet 6I of asbestos orother insulating material.

vMounted in the end plate V56 and extending lso " `tends through themate through the sheet 6i and the plate'52 I provide a pair of removablevalved spigots 59 and 66. A baille plate 62 is secured to the plate V52above the opening of theiiue tube 58Y and serves to clamp the sheet6I'inplace.Y A

A burner shield 63 in which the burner 22 is positioned is removablysecured to theend plate and includes a reduced portion 64 which ex- 58and into the tube l58'.

' The front apron -38 is removably secured to the plate 50 as at 65.VWhen it isdesiredto lremove 'the tank 36 fromthe container il thespigts 58 and vBiliare removed, bolts 53 and 54 areremoved and the cover52 is removed. The fastening 65 is removed and the tank 36 anditsas'sociate'd hangers 31 are slid rearwardly along the shelf poruonssa.A .Y p

Y In operation the tank is filled-with tar or whatever substance that isto be melted and theburn-V Y er 22 lighted. Therflam'e andproducts ofcom feobusti'on Vpass through the portion 64 through the flue tube 58and impinge on the'asbestos plate 6i. The y heated gases then aredirectedV side# wardly and downwardly by the baille 62 'and flow backthrough the crescent shaped region between the tank 36 Vand thecontainer I VI to the 'space between the plate 50 andthe plate 51a-Frornfthere the gases discharge'throu'gh anvaperture 66 and are directedupwardlyVV and downwardly by'ra deflector 61. y Y 1 f From the foregoingdescription `it willbe'jap` parent that I have provided a novel heatingkettle which is safe' and eilicilentin use Vand. which is simple andeconomical to manufacture 'and maintain. v p j Having thus described myinvention I claimt 1. In a melting kettle, anY elongatedU shaped framehaving parallel sides, acontainer Vremovably 'secured between saidsides, said container being of general circular cross section, saidcontainer having an'open 'top and havingk outwardly directed shelvesalong the top, a receptacle hav` ing hanger portionsY thereon, Vsaidreceptacle hanger portionsslidably engaging the shelf portions lof thecontainer Vso that the receptacle may be slidably removedfrorn thecontainer, said receptacle being generally circular'in cross-section andof'a diameter less than that of the container, said container andreceptacle havingA their upper portions closely adjacent to each otherso that a crescent shaped space is formed between the receptacle andcontainer," any apron at each end of by welding to an end l and spacedfroin'th' the receptacle, the inner ends of said aprons being directedupwardly to form flanges defining an opening, a cover for said openingand disposed on said flanges, said receptacle and said container havingends, said ends being spaced apart, a ilue extending through saidreceptacle, a burner arranged at one end of the receptacle, a shieldabout said burner, said shield extending through the adjacent end of thecontainer and being disposed in the end of the flue, the end'of thecontainerremote from said burner being readily removably mounted toallow the receptacle to be removed. 2. In a melting kettle, an elongatedU-shaped frame having parallel sides, a container remov-l ably securedbetween said sides, said container A being of general circularcrosssection, said container having an open top and having outwardlydirectedshelf portions on the sides of the top, a

receptacle having outwardly directed hanger por-- tions thereon, saidreceptacle hanger portions slidably engaging the shelf portions ofY thecontainer so that the receptacle may be slidably removed from the'container',` said receptacle being generally circularin Vcross sectionand of a diameter less than that of the container, said container andreceptacle havingV their upper portions closely adjacent to each othersothat` a crescent shaped space is formed between the receptacle andcontainer, said receptaclehaving Ta topcl'os'ure with an openingtherein, a cover for said opening, said cover being hinged to one ofsaid hangers, said cover having-'a downwardly directed flange at theouter edge thereof, a lever mounted `on lsaid cover, said leverincluding 'an operatingportion accessible `from one side of the kettle,`said receptaclez'and said container having ends, said ends being spacedapart, a ue extending through said receptacle, a burner -ar ranged atone end of the receptaclea shield y 4l) about said burner, said shieldextending throughV the adjacent end of the container and being disposedin the end of the ilue, the distance between the end wall of thereceptacle and container 'at the end remote. from theburner beinggreater than the distance from the receptacle and burner at the endadjacent ,said burner, thev end of Athe container remote from Vsaidrburner being fre;

movably mountedto allow thereceptacletobe j angularly extendingoutwardlyV directed Vhanger portions thereon, said receptacle hangerportions slidably engaging the shelf portionsA of the container so thatthe receptaclemay be'slidabl'y ree( moved from the container, saidreceptacle-being generally circular Ain crosssection'and of a diameterless than that of the container, said container and receptaclehavingtheir upper portions closely adjacent to each other s'othat acrescent 6.

shapedspace is formed between the receptacle and container, anY apronextending between hangerportionsV of the receptacle at each end tthereof the inner ends of said vapron being rbent upwardly to formflanges lcover for said opening and disposed on said flanges, said coverbeing hinged to one oisaid hangers, saidV cover having a downwardlydirected flange thereon at the outer edge thereof,a sec-k ond-flangesecured tolthe cover within the first i tol said container defining anopening, a 7

mentioned flange, said receptacle opening having with outwardly directedshelves along the top, a a U-shaped member extending thereabove, saidreceptacle having hanger portions thereon, said second ange beingdisposed within said U-shaped receptacle hanger portions slidablyengaging the member, a lever mounted on said cover, said lever shelfportions of the container so that the reincluding an operating portionaccessible from ceptacle may be slidably removed from the con- 5 oneside of the kettle, said receptacle and said tainer, said receptaclebeing generally circular in container having ends, said ends beingspaced cross section and of a diameter less than that of apart, a flueextending through said receptacle, a the container, said container andreceptacle havburner arranged at one end of the receptacle, a ing theirupper portions closely adjacent to each shield about said burner, saidshield extending other so that a longitudinally extending, crescent lothrough the adjacent end of the container and shaped space is formedbetween the receptacle being disposed in the end of the ue, the distanceand the container, an apron at each end of the between the end wall ofthe receptacle and conreceptacle, the inner ends of said apron havingtainer at the end remote from the burner being upwardly directed angesdefining an opening, a

l5 greater than the distance from the receptacle and cover for saidopening, said receptacle and said 15 burner at the end adjacent saidburner, the end container having ends, said ends being spaced of thecontainer remote from said burner being apart, a ilue extending throughsaid receptacle, readily removably mounted to allow the receptacle aburner arranged at one end of the receptacle, to be removed. the end ofthe container remote from said burner 20 4. In a melting kettle, aframe, a container sebeing readily removable to allow the receptacle 20cured to said frame, said container being of gento be removed. eralcircular cross section and having an open top JAMES N. WILLIAMS.

